Theory of transition times: Catalysis at rotating disk electrodes

Daniel Alberto Scherson, Philip N. Ross

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

An exact solution to the problem of convective diffusion to a rotating disk electrode in the limit of high Schmidt numbers, with a prescribed initial profile and current step conditions at the surface is presented. Based on this solution a current density-transition time relationship is established which, in the limit, reduces to a previously proposed expression that accounts for experiemntally observed deviations from the Sand equation. Applications of this theory in connection with the determination of rate parameters for electroactive species undergoing a catalytic reaction at the electrode surface are discussed.

Original languageEnglish
Pages (from-to)209-217
Number of pages9
JournalJournal of Electroanalytical Chemistry
Volume119
Issue number2
DOIs
Publication statusPublished - 1981 Mar 10
Externally publishedYes

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ASJC Scopus subject areas

  • Analytical Chemistry
  • Chemical Engineering(all)
  • Electrochemistry

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